PhysicsYou are given two transverse waves on a string: f1(x) and f2(x) moving toward each other. At an initial time, the wave f1(x) (lying between 0 and 5 m) moves to the right at v1 = +1 m/s and f2(x) (lying between 5 and 10 m) is moving to the left at v2 = −1 m/s.
February 18, 2015

physicsA sledge weighing 30 kg is pulled with a rope that makes 60° with the horizontal. The tension on the rope is constant and it is 37N. The sledge is moved horizontally for 13 m. There is no friction and cos(60°)=0.5 a) What is the work done by the tension on the sledge ...
February 15, 2015

HELLO!?I do apologize then, could you let me know when they will be so maybe I can get help then?
July 29, 2011

HELLO!?i have posted several questions? and NON have gotten help? :( WHY is everyone else getting help and NOT me? HELLOO???
July 29, 2011

chemistry The mercury (I) ion is unusual. Look up the charge of the ion. Suggest a possible explanation for its charge. Further Explain how the electron configuration plays a role in its unusually abilities.
July 29, 2011

chemistrywhen atoms collide, what determines whether they will react by transfering electrons or by sharing electrons
July 29, 2011

algebraPlease help me! Im lost on where to start. 1.)Solve: 3/2z+4z=1 2.)Solve the following equation: x-2/x+2=x+2/x+4
September 17, 2010

PsychologyWhat are some of the characteristics of a Type A personality?How could aving a Type A personality affect a person's reaction to stress?What would you view as some advantages and disadvantages of a Type A personality?
September 10, 2010